Karl batjmann



LOUIS assault, or NEW YORK, at. Y.

SPARK-PLUG.

Specification of Letters Patent.

Patented Aug. 112, 1919..

Application filed February 28, 1918. Serial No. 219,561.

To all whom it may concern:

' Be it known that 1, Louis BAsKIN, a citizen of the United States, and resident of New York city, borough of the Bronx, in the county of the Bronx, and State of New York, have invented certain new and useful Improvements in Spark-Plugs, of which the following is a specification.

My mvention relates to improvements in spark plugs, and has particular reference to the construction of what is commonly called one-piece spark plugs wherein the insulating portion having the central electrode is non-detachably secured to the base, one object of my invention being to enable the construction of the plug with a minimum of loss due to breakage in manufacture-,- whereby the cost of manufacturing plugs may be reduced.

Another'object of my invention is to provide a spark plug having a removable central electrode within an insulated tube, with means to detachably retain the electrode within said tube, whereby the electrode may be removed for cleaning and to enable prim- I ing of the engine cylinder through the plug.

Other features of my invention and details of construction will be more fully hereinafter set forth and then pointed out in the c aims.

Reference is to be had to the accompanying drawings forming part thereof, wherein,

Figure 1 is a side view of a spark plug embodying my invention; Fig; 2 is a longitudinal section on the line 2, 2, in Fig. 1; :Fig. 3 is an enlarged cross section on the line 3, 3, in Fig. 2; Fig. 4 is an enlarged end view of the plug, looking from the bottom of Fig. 1; Fig. 5 is a detail section of the tube for the central electrode; Fig; 6 is a detail perspective of insulation for said tube; 7 is an enlarged detail of the electrode or sparking points for the base; Fig; 8 is a detail of the central electrode; Fig. 9 is a detail section of the base, illustrating one wayof attaching the electrode or sparking points to the base, and Fig. 10 is a detail sectional view illustrating ,another way of attaching said sparking points to the base.

The numeral 1 indicates a plug, which may be made of metal in any suitable or well known way, and the same is shown provided with threads 2 for attachment to an engine. At 3 is a tube upon which a sleeve 4 is mounted and insulated from the tube. The sleeve 4 may be made of metaland is shown provided with a downwardly tapering portion 4 adapted to fit gas tight within the correspondingly tapering wall portion 1 of base 1. Tube 3 may be made of metal and is shown provided with a head or flange 3 at its inner end, and said tube is inclosed within insulation 5. The insulation 5 may be in the form of sheet inica wrapped around tube 3 for any number of convolutions. Said insulation with the tube is fitted within sleeve 4. Between the head or flange 3 of tube 3 on one side of sleeve 4 is located insulation 6, which may comprise mica disks, and on the opposite, side of sleeve 4, around tube 3 and insulation 5, is other insulation 7 ,which also may comprise mica disks. The tube 8 is shown provided with threads 3 at its outer end, adapted to receive ,a sulation 6, 7, and the sleeve 4 may be pressed tightly together between head 3' and nut 8.1 provided with a recess The sleeve 4 is shown 4 receiving some of the mica insulating disks 7, whereby the weight of the sleeve may be reduced. The parts 3, 4, 5, 6, 7, when secured together in the manner stated, providea unit adapted to be secured in base 1, in any desired manner. By preference, the sleeve 4 is secured in base 1 by forcing a portion of the metal. of said base against the sleeve. For such purpose I have shown base 1 provided with an inte ral rim 1 at the inner edge of its bore (Fig. 9), of such dimensions or thickness as will. permit such rim to be rolled, pressed or swaged over against the outer end of sleeve 4, as indicated at 1. in Fig. 2, whereby the sleeve will be held gas-tight against the wall 1 within the base. 2

At 9 is a central electrode adapted to pass through the bore in sleeve 3 to cooperate with the sparking point or points, or electrode, carried-by the base and indicated generally at 10. The electrode 9 is shown probase of a spark WITN ESSES K. BAUMANN.

CONDENSING STEAM TURBINE PLANT.

APPLICATION FILED JUNE 15, 1916.

1,312,512. PatentedAug. 12,1919.

TS-S

3 SHEE HEET 2.

K. BAUMANN. CONDENSING STEAM TURBINE PLANT. APPLICATION FILED JUNE I5, 1916.

1,312,512. Patented Aug. 12, 1919.

3 SHEETSSHEET 3.

WITNESS-ES INVENTOR g 2 W M" UNITED s'rA'rEs PATEN it KARL BAUMANN, or URMSTON, ENGLAND, ASSIGNOR TO THE BRITISH WESTINGHOUSE ELECTRIC AND MANUFACTURING COMPANY LIMITED, A COMPANY or GREAT BRITAIN.

Specification of Letters Patent.

I CONDENSING STEAM-TURBINE PLANT.

. Patented Aug. 112, 11919.

Application filed June 15, 1916. Serial No. 103,728.

To all whom it may concern:

Be it known that I, KARL BAUMANN, a cltizen of the Confederation of Switzerland,

and a resident of Urmston, in the county of a feed water heater supplied with heating steam at a pressure below that of the atmosphere from a low pressure stage or th glands of the main steam turbine.

According to the present invention one or more steam or water jets or ejectors or other air extracting devices are inserted in the air off-take pipe from the condenser to assist in removing the air and non-condensable gases accumu ating therein and said 01?- 7 take pipe is connected to the feed water heater so that in case of steam jets the'steam from the steam jets or ejectors is passed through the heater supplied with heating steam as aforesaid and assists in heating the feed water therein, and in general the air j'extracted is'further cooled in the cheater. Where steam jets'are used, the steam for operating them may be taken from the boilers or from any suitable stage of the main turbine. A suitable air-extracting device is connected with the feed water heater which will remove all air and non-condensable gases accumulating therein together with the air and non-condensable gases delivered to the heater from the condenser by the steam jets, ejectors or other air extracting devices aforesaid.

The invention is diagrammatically represented in the accompanying drawings in which Figure 1- is a view partially in section and partially in elevation of an apparathis invention, Fig. 2 is a view partially in section and partially in elevation of the Invention with the turbine and the connection from the turbine tothe condenser omitted and shows a modified form of the invention shown in Fig. 1, and Fig. 3 is a view similar to Fig. 2 but shows still another modified form of the invention.

In Fig. 1 the steam turbine is indicated at 4 and the condenser at 5. Theheater is shown at 6 and is supplied with steam through the pipe 7 from a low pressure stage of the which is here shown as the extraction pump of the condenser 5. The water passing through the heater is carried away therefrom by abarometric leg 10. The air oiftake pipe from the condenser is indicated at 11 and is connected with the heater 6 by a unction between the pipes 7 and 12. A steam e ector 13 supplied with steam from any suitable source, such as an operative stage of the main turbine, assists in removmg the air and nonecondensable gases accumulatlng in the condenser 5. The steam passing through the steam ejector 13 is utilized 1n the heater 6 to assist in heating the feed water therein. The air removed from .the air oil-take pipe 11 from the condenser 5. The waterfor this ejector is supplied by the condenser extraction pump 9 and furnishes the feed water to be heated in the heater 6.

. In Fig. 3 an air ejector 16 is shown insorted in the air off-take pipe 11 from the condenser 5. In this case the heater 6 acts as a receiver and cooler for the air and noncondensable gases coming from the condenser 5 and passing through the ejector 16 before being removed through the outlet 14 by the main air pump.

I claim as my invention 1. In combination with a condensing steam turbine, a feed water heater provided with an air off-take pipe adapted to be connected toan air extracting device, means for supplying said feed water heater with steam below atmospheric pressure derived from a low pressure part of said turbine, a condenser connected to said turbine, a'con nection'between said condenser and said feed water heater for supplying said heater with water'from said condenser, an air connec tion between said condenser and said feed -water heater, and an air extracting device in said connection.

2. In combination wlth a condensing steam turbine, a condenser connected to the ing with said air connection for extracting air and noncondensable vapors from said condenser and delivering them to said feed Water heater. t

In testimony whereof, I have hereunto 15 subscribed my name this 26th day of May KARL BAUMANN.

Witnesses:

CAMPBELL MARTIN, CHARLES GRAHAM LLOYD. 

